Details of an upcoming Microsoft smartwatch were uncovered in May, hinting at a summer release. However, a new source claims that the device will actually debut in October.

In addition to the update regarding the launch of the device, the source also offers a few more details about the device itself.

Previous reports have already mentioned that the wearable will monitor the wearer's heart rate, but a source in contact with Tom's Hardware claims that it will use 11 internal sensors to achieve this function.

The report further claims that the device will contain chips from Texas Instruments and Atmel.

And while we've already heard that the device will be cross platform — compatible with Windows, Android and iOS — the latest report also claims that the company will include an open API upon the device's release.

The source also claims that, design-wise,

the device will be very thin, like a "flatter version of the Nike Fuelband."

the device will be very thin, like a "flatter version of the Nike Fuelband."

Another design point revealed in the report is that the device's screen will be on the inside of the wearer's wrist, which could make discreetly checking its screen at lot easier than the way in which you might view the screen of a device like Samsung's Galaxy Gear.

Of course, none of these details have been confirmed by the company itself, but if the updated launch window is accurate, we'll know for sure in just a few months. Unfortunately, if the timing is accurate, that would mean that Microsoft's smartwatch would debut around the same time as the iWatch, which is rumored to launch in October as well.